Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nuss.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-28 21:23:57 UTC · ↺ Refresh
MX Hostnames
- mx04.hornetsecurity.com
- mx01.hornetsecurity.com
- mx02.hornetsecurity.com
- mx03.hornetsecurity.com
MX Priorities
- mx03.hornetsecurity.com: 30
- mx04.hornetsecurity.com: 40
- mx01.hornetsecurity.com: 10
- mx02.hornetsecurity.com: 20
A / AAAA Records
- 217.160.0.56 ↩ 217-160-0-56.elastic-ssl.ui-r.com
Mail Server IPs
- 94.100.134.8 ↩ mx03.hornetsecurity.com
- 94.100.136.7 ↩ mx04.hornetsecurity.com
- 94.100.132.8 ↩ mx01.hornetsecurity.com
- 94.100.136.8 ↩ mx02.hornetsecurity.com
SOA Record
Raw SOA
ns1027.ui-dns.com hostmaster.1und1.de 2016110434 28800 7200 604800 300
Primary NS (mname)
ns1027.ui-dns.com
Admin Email (rname)
hostmaster@1und1.de
Serial
2016110434
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1027.ui-dns.com
ns1027.ui-dns.de
ns1027.ui-dns.biz
ns1027.ui-dns.org
SPF Record
✓ Strict (-all)
v=spf1 a mx a:firewall.nuss.de ip4:217.7.116.190 ip4:217.160.0.56 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:spf.hornetsecurity.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 a mx a:firewall.nuss.de ip4:217.7.116.190 ip4:217.160.0.56 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:spf.hornetsecurity.com -all
- v=verifydomain MS=3105684
Full email verification for nuss.de
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